1,2
a(2)=4181 so 4181 is the smallest Fibonacci number containing exactly two 1's.
Sequence in context: A049062 A093372 A091982 * A045728 A048593 A050937
Adjacent sequences: A072319 A072320 A072321 * A072323 A072324 A072325
base,nonn
Shyam Sunder Gupta (guptass(AT)rediffmail.com), Jul 14 2002